Question 1

During the cardiac cycle, the

Accepted Answer

A)   P wave of the ECG occurs between the first and second heart sounds.
B)   QRS complex of the ECG precedes the increase in ventricular pressure.
C)   second heart sound occurs during atrial systole.
D)   first heart sound coincides with the QRS complex of the ECG.
E)   both B and DF) All of the above
G) B) and E)

Question 2

The volume of blood ejected from each ventricle during a contraction is called the

Accepted Answer

A)   cardiac output.
B)   cardiac reserve.
C)   end- diastolic volume.
D)   end- systolic volume.
E)   stroke volume.F) A) and C)
G) C) and E)

Question 3

The two types of cardiac muscle cells involved in a normal heartbeat include specialized cells of the _______ system and _______ cells.

Accepted Answer

conducting...

Question 4

A faster- than- normal heart rate is called _________

Accepted Answer

The answer of A faster- than- normal heart rate is...

Question 5

Blood leaves the right ventricle by passing through the

Accepted Answer

A)   tricuspid valve.
B)   bicuspid valve.
C)   pulmonary valve.
D)   mitral valve.
E)   aortic valve.F) A) and C)
G) B) and D)

Question 6

Which of the following descriptions matches the term near the left fifth intercostal space?

Accepted Answer

A)   right atrium
B)   pericardial cavity
C)   visceral pericardium
D)   aorta
E)   apex of heartF) None of the above
G) B) and E)

Question 7

Cells that spontaneously make action potentials make up________ tissue.

Accepted Answer

The answer of Cells that spontaneously make action potentials make...

Question 8

The _________circuit carries blood to and from the lungs

Accepted Answer

The answer of The _________circuit carries blood to and from...

Question 9

The __________circuit carries blood from the aorta to the right ventricle

Accepted Answer

The answer of The __________circuit carries blood from the aorta...

Question 10

Figure 18- 2 Cardiac Cycle
Use Figure 18- 2 to answer the following questions:
-The earlike extension of the atrium is the

Accepted Answer

A)   auricle.
B)   coronary sulcus.
C)   atricle.
D)   coronary sinus.
E)   ventricle.F) All of the above
G) A) and B)

Question 11

As the left ventricle contracts, it bulges into the____________

Accepted Answer

right ventricular cavity

Question 12

The superior portion of the heart where major blood vessels enter and exit is the_______________

Accepted Answer

The answer of The superior portion of the heart where...

Question 13

Compared to the right ventricle, the left ventricle has all the following characteristics, except that it

Accepted Answer

A)   pumps a greater volume.
B)   produces about six to eight times more pressure when it contracts.
C)   has a thicker wall.
D)   is round in cross section.
E)   works harder.F) A) and B)
G) A) and E) A

Question 14

The___________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium.

Accepted Answer

endocardium

Question 15

The right ventricle pumps blood to the

Accepted Answer

A)   left ventricle.
B)   aorta.
C)   right and left lungs.
D)   right atrium.
E)   left atrium.F) B) and E)
G) A) and E)

Question 16

An equivalent term for epicardium is____________

Accepted Answer

visceral p...

Question 17

The amount of blood remaining in the ventricle when the semilunar valve closes is the________.

Accepted Answer

end- systo...

Question 18

During the isovolumetric phase of ventricular systole, the

Accepted Answer

A)   atrioventricular valves and semilunar valves are closed.
B)   atria are contracting and the ventricles are relaxing.
C)   blood is ejected into the great vessels.
D)   all of the above
E)   B and C onlyF) C) and E)
G) B) and C)

Question 19

The contraction phase of the cardiac cycle is called _________

Accepted Answer

The answer of The contraction phase of the cardiac cycle...

Question 20

Depolarization of the atria corresponds to the EKG's

Accepted Answer

A)   S- T segment.
B)   T wave.
C)   P wave.
D)   QT interval.
E)   QRS complex.F) D) and E)
G) B) and D)

Exam 18: The Heart

During the cardiac cycle, the

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The volume of blood ejected from each ventricle during a contraction is called the

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The two types of cardiac muscle cells involved in a normal heartbeat include specialized cells of the _______ system and _______ cells.

Correct Answerverifiedconducting...View AnswerShow Answer

A faster- than- normal heart rate is called _________

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Blood leaves the right ventricle by passing through the

Correct AnswerverifiedShow Answer

Which of the following descriptions matches the term near the left fifth intercostal space?

Correct AnswerverifiedShow Answer

Cells that spontaneously make action potentials make up________ tissue.

Correct AnswerverifiedShow Answer

The _________circuit carries blood to and from the lungs

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The __________circuit carries blood from the aorta to the right ventricle

Correct AnswerverifiedShow Answer

Figure 18- 2 Cardiac Cycle Use Figure 18- 2 to answer the following questions: -The earlike extension of the atrium is the

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As the left ventricle contracts, it bulges into the____________

Correct Answerverifiedright ventricular cavity

The superior portion of the heart where major blood vessels enter and exit is the_______________

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Compared to the right ventricle, the left ventricle has all the following characteristics, except that it

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The___________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium.

Correct Answerverifiedendocardium

The right ventricle pumps blood to the

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An equivalent term for epicardium is____________

Correct Answerverifiedvisceral p...View AnswerShow Answer

The amount of blood remaining in the ventricle when the semilunar valve closes is the________.

Correct Answerverifiedend- systo...View AnswerShow Answer

During the isovolumetric phase of ventricular systole, the

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The contraction phase of the cardiac cycle is called _________

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Depolarization of the atria corresponds to the EKG's

Correct AnswerverifiedShow Answer

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The two types of cardiac muscle cells involved in a normal heartbeat include specialized cells of the _ system and _ cells.

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conducting...
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right ventricular cavity

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A

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endocardium

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visceral p...
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end- systo...
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